| <!doctype html> |
| <title>DOMStringList</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| |
| // Returns a promise that resolves to a DOMStringList with |
| // the requested entries. Relies on Indexed DB. |
| function createDOMStringList(entries) { |
| return new Promise((resolve, reject) => { |
| const dbname = String(self.location + Math.random()); |
| const request = indexedDB.open(dbname); |
| request.onerror = () => reject(request.error); |
| request.onupgradeneeded = () => { |
| const db = request.result; |
| entries.forEach(entry => db.createObjectStore(entry)); |
| const dsl = db.objectStoreNames; |
| resolve(dsl); |
| request.transaction.abort(); |
| } |
| }); |
| } |
| |
| function dsl_test(entries, func, description) { |
| promise_test(t => createDOMStringList(entries).then(dsl => func(t, dsl)), |
| description); |
| } |
| |
| dsl_test(['a', 'b', 'c'], (t, dsl) => { |
| assert_equals(dsl.length, 3, 'length attribute'); |
| }, 'DOMStringList: length attribute'); |
| |
| dsl_test(['a', 'b', 'c'], (t, dsl) => { |
| assert_equals(dsl.item(0), 'a', 'item method'); |
| assert_equals(dsl.item(1), 'b', 'item method'); |
| assert_equals(dsl.item(2), 'c', 'item method'); |
| assert_equals(dsl.item(3), null, 'item method out of range'); |
| assert_equals(dsl.item(-1), null, 'item method out of range'); |
| assert_throws_js(TypeError, () => dsl.item(), |
| 'item method should throw if called without enough args'); |
| }, 'DOMStringList: item() method'); |
| |
| dsl_test(['a', 'b', 'c'], (t, dsl) => { |
| assert_equals(dsl[0], 'a', 'indexed getter'); |
| assert_equals(dsl[1], 'b', 'indexed getter'); |
| assert_equals(dsl[2], 'c', 'indexed getter'); |
| assert_equals(dsl[3], undefined, 'indexed getter out of range'); |
| assert_equals(dsl[-1], undefined, 'indexed getter out of range'); |
| }, 'DOMStringList: indexed getter'); |
| |
| dsl_test(['a', 'b', 'c'], (t, dsl) => { |
| assert_true(dsl.contains('a'), 'contains method matched'); |
| assert_true(dsl.contains('b'), 'contains method matched'); |
| assert_true(dsl.contains('c'), 'contains method matched'); |
| assert_false(dsl.contains(''), 'contains method unmatched'); |
| assert_false(dsl.contains('d'), 'contains method unmatched'); |
| assert_throws_js(TypeError, () => dsl.contains(), |
| 'contains method should throw if called without enough args'); |
| }, 'DOMStringList: contains() method'); |
| |
| </script> |
